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authorNamhyung Kim <namhyung@kernel.org>2014-01-16 11:31:09 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-01-16 16:26:24 -0300
commitac668c7b7d87c1895faf196a337b5ddfd32a0e21 (patch)
treed25088441689fa96f9b233c189d34268c77f5d64 /tools
parent20c7e5abbd0cdfaa656f46af052a6e6a8ce94775 (diff)
downloadlinux-ac668c7b7d87c1895faf196a337b5ddfd32a0e21.tar.bz2
tools lib traceevent: Unregister handler when function plugin is unloaded
The function handler should be unregistered when the plugin is unloaded otherwise it'll try to access invalid memory. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Reviewed-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1389839478-5887-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/lib/traceevent/plugin_function.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index 39461485f9a7..80ba4ff1fe84 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -148,6 +148,9 @@ void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
{
int i, x;
+ pevent_unregister_event_handler(pevent, -1, "ftrace", "function",
+ function_handler, NULL);
+
for (i = 0; i <= cpus; i++) {
for (x = 0; x < fstack[i].size && fstack[i].stack[x]; x++)
free(fstack[i].stack[x]);